Big bang an exploding white hole, opposite of a black hole? (paper) This sounds interesting and somehow satisfying.

LED light bulbs coming, but incandescents being phased out by mandate in January, 2012? What?! Time to stockpile bulbs. I like my black-body radiation.

Speaking of black-body radiation, suppose I have an enclosed system with a single aperture for light and only light to pass through. Do I now have a system for converting heat to light, and therefore to electricity via bandgaps? Doesn’t that violate some law of thermodynamics?
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… is a stupid idea. Yes, daylight is nice to have, but then go to work from 7 to 4 instead of 8 to 5. The only reason to change the clocks instead of changing schedules is because changing schedules (and habits in general) is hard. So we must pretend 7AM is 8AM. In fact, as long as artificial lighting exists, having a non-symmetric waking schedule will always be the norm, I argue. If daylight savings time existed year-round, people would start going to work at 9AM, and end up with no savings of daylight at all. Why don’t I break all my light bulbs and start getting up at 4AM and going to bed at 8PM. That maximizes daylight usage not to mention you see both sunrise and sunset. Sounds good to me. Why doesn’t everybody do that?

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